Answer:
Explanation:
Given
slit width 
wavelength of light 
Screen is placed at a distance of 
The angle for the first minima is given by

for m=1


and one half of central maxima is given by



Width of central maxima 
The correct answer would be
Mile
B the goose with most mass
this is because momentum=mass x acceleration
so a larger mass will give a larger momentum ( acceleration stays constant)
To solve the problem it is necessary to refer to the definition of entropy.
Entropy is defined aso

Where,
Heat exchange
T = Temperature
Since the heat exchange is conserved and it is an isothermal process where the temperature remains constant the change in entropy remains the same, ie
(Reamins same)
Therefore the correct answer is C.
Answer:
iron
Explanation:
Increasing the number of coils of wire wrapped around the nail increases the strength of the electromagnet, as measured by the number of paper clips the magnet can pick up